DITHERED SAMPLING PATTERNS FOR TEMPORAL COLOR AVERAGING
First Claim
Patent Images
1. A method of graphics processing, comprising:
- selecting, on a frame-by-frame basis for a sequence of frames, a selection of a set of tiles in which the tiles are sparsely sampled at an average sample rate of less than one sample per pixel;
selecting, in each frame, a sampling pattern for each sparsely sampled tile selected from a set of different sampling patterns having the same average sampling rate; and
varying the sampling pattern in individual tiles over a sequence of frames to temporally color average sampling artifacts.
1 Assignment
0 Petitions
Accused Products
Abstract
Graphics processing is performed in which a decision is made in individual tiles whether or not to sample at a reduced sampling rate. A sampling pattern is selected from a set of sampling patterns having the same reduced sampling rate. The sampling pattern is dithered over a set of frames to reduce the visual appearance of visual artifacts via temporal color averaging.
-
Citations
23 Claims
-
1. A method of graphics processing, comprising:
-
selecting, on a frame-by-frame basis for a sequence of frames, a selection of a set of tiles in which the tiles are sparsely sampled at an average sample rate of less than one sample per pixel; selecting, in each frame, a sampling pattern for each sparsely sampled tile selected from a set of different sampling patterns having the same average sampling rate; and varying the sampling pattern in individual tiles over a sequence of frames to temporally color average sampling artifacts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of graphics processing, comprising:
-
determining, in each frame, a required minimum sample rate for each tile of a frame and selecting a sample rate for each tile in the frame; selecting, in each frame, a sampling pattern for each tile that is sparsely sampled at a selected sampling rate of less than one sample per pixel, the sampling pattern being selected from a set of different sampling patterns having the same selected sampling rate but a different arrangement of sample locations; and varying the sampling pattern in individual tile locations over a sequence of frames to temporally color average sampling artifacts associated with sparse sampling. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A graphics system including a graphics pipeline, comprising:
-
an adaptive sample generator configured to adapt a sampling rate of individual tiles based on a required sampling rate; and a dithering unit, the dithering unit varying a sampling pattern utilized by the adaptive sample generator to sample tiles at an average sample rate of less than one sample per pixel. - View Dependent Claims (18, 19, 20, 21, 22, 23)
-
Specification